Exhibition

21Super Hi-Vision

Smart FPU Broadening Possibilities of Outside Broadcasts
Highly reliable wireless IP transmission system with duplex communication

Outline

We are researching a smart FPU※1 with duplex transmission capabilities for the wireless transmission of video footage, including outside broadcast programs, to broadcasting stations. This FPU uses IP※2 to implement many functions remotely, including the transfer of video files and the control of equipments. Here, we introduce an example of a system where a smart FPU is used to connect an outside broadcast site and a broadcasting station via an IP network.

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Features

Using an IP network to connect to a program production system
A wireless IP communication system equipped with this smart FPU can connect seamlessly to IP networks at outside broadcast sites and to the internal IP networks of broadcast stations. When performing tasks such as the remote control of facilities at outside broadcast sites and the uploading of video files from an outside broadcast site to a file-based system at the broadcasting station, the external facilities can be regarded as part of an IP-linked program production system in the same way as facilities situated within the broadcasting station.
A low-latency wireless duplex communication system
We have managed to achieve low-latency communication by devising a suitable transmission sequence and transmission frame configuration. As a result, we can use FPUs exclusively to implement all the communication links needed for live outside broadcasts, specifically, an equipment control, an intercom communication, and return video and audio to the outside broadcast site.
Improved error correction coding and retransmission control scheme for high-speed file transmission
To implement high-capacity communication in the same channel as a conventional FPU, we have increased the modulation order and made improvements to the error correction coding and retransmission control scheme. As a result, we can transmit high-definition video files approximately three times faster than real time.

Future plans

We plan to include a full set of functions for connecting to IP-enabled program production systems (e.g., a function whereby a smart FPU can automatically decide where an item of equipment should be connected), and to continue working towards 8K program production, a practical implementation and standardization of this technology.

  • ※1 FPU (Field Pickup Unit): Portable wireless transmission apparatus for the transmission of video signals, used for the transmission of outside broadcast programs and other video footage
  • ※2 IP (Internet Protocol): A communication protocol used to transfer information via the Internet
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Smart FPU Broadening Possibilities of Outside Broadcasts Highly reliable wireless IP transmission system with duplex communication

  • Smart FPU Broadening Possibilities of Outside Broadcasts
  • A radio-frequency head of smart FPU (wireless link) and a dual-polarized parabolic antenna
  • A controller of smart FPU (wireless link)
  • IP-based outside broadcasts